A roadway project will be constructed in 2026 as flexible pavement, pt=-2.5, expected SN= 4 and has a 20-year design life. Design work was done in 2021, with growth rate of 6%. The traffic survey gives axles loads shown in table above. Find the design ESAL according to AASHTO design method. Truck type Axle Category Type-1 Туре-2 1-single axle of 30 kips 1- tandem axle of 32 kips 1-single axle of 18 kips 2- tandem axle of 40 kips 1-single axle of 20 kips 1- tandem axle of 36 kips 1- tandem axle of 50 kips 2-single axle of 22 kips 1- tandem axle of 38 kips 2-single axle of 38 kips 1- tandem axle of 52 kips 2-single axle of 14 kips 1- tandem axle of 32 kips 1- triple axles of 50 kips 1-single axle of 40 kips Type-7 1- tandem axle of 32 kips CS CamScanner triple axies of 58 kips Type-3 Type-4 Type-5 Type-6 % Total AADT 9% 10% 7% 5% 3% 5% 4%
A roadway project will be constructed in 2026 as flexible pavement, pt=-2.5, expected SN= 4 and has a 20-year design life. Design work was done in 2021, with growth rate of 6%. The traffic survey gives axles loads shown in table above. Find the design ESAL according to AASHTO design method. Truck type Axle Category Type-1 Туре-2 1-single axle of 30 kips 1- tandem axle of 32 kips 1-single axle of 18 kips 2- tandem axle of 40 kips 1-single axle of 20 kips 1- tandem axle of 36 kips 1- tandem axle of 50 kips 2-single axle of 22 kips 1- tandem axle of 38 kips 2-single axle of 38 kips 1- tandem axle of 52 kips 2-single axle of 14 kips 1- tandem axle of 32 kips 1- triple axles of 50 kips 1-single axle of 40 kips Type-7 1- tandem axle of 32 kips CS CamScanner triple axies of 58 kips Type-3 Type-4 Type-5 Type-6 % Total AADT 9% 10% 7% 5% 3% 5% 4%
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter21: Pavement Management
Section: Chapter Questions
Problem 10P
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